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CN102273217B - Method and apparatus for digital broadcasting service - Google Patents

Method and apparatus for digital broadcasting service Download PDF

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Publication number
CN102273217B
CN102273217B CN200980153049.8A CN200980153049A CN102273217B CN 102273217 B CN102273217 B CN 102273217B CN 200980153049 A CN200980153049 A CN 200980153049A CN 102273217 B CN102273217 B CN 102273217B
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China
Prior art keywords
content
receiver
control
access criteria
control access
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Expired - Fee Related
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CN200980153049.8A
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Chinese (zh)
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CN102273217A (en
Inventor
塞勒兹内夫.瑟吉
黄承吾
李炳来
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Samsung Electronics Co Ltd
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Samsung Electronics Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/16Analogue secrecy systems; Analogue subscription systems
    • H04N7/167Systems rendering the television signal unintelligible and subsequently intelligible
    • H04N7/1675Providing digital key or authorisation information for generation or regeneration of the scrambling sequence
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q30/00Commerce
    • G06Q30/02Marketing; Price estimation or determination; Fundraising
    • G06Q30/0207Discounts or incentives, e.g. coupons or rebates
    • G06Q30/0239Online discounts or incentives
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/266Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • H04N21/26606Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel for generating or managing entitlement messages, e.g. Entitlement Control Message [ECM] or Entitlement Management Message [EMM]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4623Processing of entitlement messages, e.g. ECM [Entitlement Control Message] or EMM [Entitlement Management Message]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4627Rights management associated to the content
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47End-user applications
    • H04N21/478Supplemental services, e.g. displaying phone caller identification, shopping application
    • H04N21/4784Supplemental services, e.g. displaying phone caller identification, shopping application receiving rewards
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/65Transmission of management data between client and server
    • H04N21/654Transmission by server directed to the client
    • H04N21/6543Transmission by server directed to the client for forcing some client operations, e.g. recording
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/835Generation of protective data, e.g. certificates
    • H04N21/8355Generation of protective data, e.g. certificates involving usage data, e.g. number of copies or viewings allowed

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Business, Economics & Management (AREA)
  • Strategic Management (AREA)
  • Accounting & Taxation (AREA)
  • Development Economics (AREA)
  • Finance (AREA)
  • Entrepreneurship & Innovation (AREA)
  • Game Theory and Decision Science (AREA)
  • Economics (AREA)
  • Marketing (AREA)
  • Physics & Mathematics (AREA)
  • General Business, Economics & Management (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

A method and apparatus for a digital broadcasting service may allow direct and real-time control of a digital broadcasting receiver. A service providing server inserts a content control access criteria descriptor into a transport stream and transmits content and the content control access criteria descriptor to the receiver through the transport stream. The receiver receives the transport stream and processes the content according to the content control access criteria descriptor, which can contain lock control information and coupon provision information. The lock control information indicates whether a control function of the receiver is locked or unlocked for specific content. The coupon provision information indicates whether a coupon available for the purchase of pay content is granted depending on execution of specific content.

Description

Method and apparatus for digital broadcast service
Technical field
The present invention relates generally to digital broadcast service technology, relate more specifically to allow the method and apparatus of the digital broadcast service of direct and real-time control figure radio receiver.
Background technology
Usually, to thering are the whole all users that carry of suitable reception, provide broadcast service.The broadcast service centered by video that such broadcast service can be divided into only provides the audio broadcasting of audio frequency service, provide video and audio frequency with together with the MBMS service of audio frequency, video and data is provided.Although traditional broadcast service is always based on analogue system, along with the surprising progress of correlation technique, current most broadcast service is digital.In addition, be better than transmitting the traditional broadcast system centered by tower, modern broadcast service is to separately or interosculate and adopt the various system growth of cable network, wireless network and artificial satellite.Particularly, along with the appearance of mobile communication technology, current broadcast system merges with mobile communication system gradually.
Digital video broadcasting (DVB) system, as one of existing broadcast system of digital broadcast service is provided, can adopt conditional access message to come for certain content or to specific terminal use, to provide broadcast service with limitation.Such conditional access message can comprise entitlement management message (EMM) and authorization control message (ECM).
The access rights of EMM leading subscriber.On the other hand, ECM provides given content selectively to titular especially user.That is, ECM refers to the message of the conditional access character that represents each content.Such ECM is included as in the required control word of receiver place descrambled content.Particularly, in order to limit the broadcast service for domestic consumer, service supplier carried out the encryption of certain content before the receiver to user sends content by scrambling.Then, the receiver of reception broadcast service can obtain the control word for descrambling in the situation that only buy the content of scrambling.
But such conditional access message may not directly be controlled receiver, and service only may be limited to content.
Summary of the invention
Technical problem
Therefore, need a kind of method for control figure radio receiver to provide various interactive services to terminal use.
Solution
An aspect of of the present present invention solves at least above problem and/or shortcoming and at least following advantage is provided.
Therefore, an aspect of of the present present invention provides a kind of method and apparatus for digital broadcast service that allows control figure radio receiver.
It is a kind of by the method and apparatus for multiple and mutual digital broadcast service of real-time control figure radio receiver that another aspect of the present invention provides.
According to an aspect of the present invention, a kind of method of the digital broadcast service for service providing server is provided, the method comprises: content-control access criteria descriptor is inserted in transport stream, wherein this content-control access criteria descriptor is for sign content control information, and this content-control information is for controlling the operation of receiver according to the execution of content; And to this receiver, send this content and content-control access criteria descriptor by this transport stream.
According to a further aspect in the invention, a kind of method of the digital broadcast service for digit broadcasting receiver is provided, the method comprises: receive transport stream, this transport stream content and content-control access criteria descriptor, this content-control access criteria descriptor is for sign content control information, and this content-control information is for controlling the operation of receiver according to the execution of content; And process this content according to this content-control access criteria descriptor.
According to a further aspect in the invention, a kind of device of the digital broadcast service for service providing server is provided, this device comprises: first module, be configured to content-control access criteria descriptor to be inserted in transport stream, wherein this content-control access criteria descriptor is for sign content control information, and this content-control information is for controlling the operation of receiver according to the execution of content; And second unit, be configured to this receiver, send this content and content-control access criteria descriptor by this transport stream.
According to a further aspect in the invention, a kind of device of the digital broadcast service for digit broadcasting receiver is provided, this device comprises: first module, be configured to receive transport stream, this transport stream content and content-control access criteria descriptor, this content-control access criteria descriptor is for sign content control information, and this content-control information is for controlling the operation of receiver according to the execution of content; And second unit, be configured to process this content according to this content-control access criteria descriptor.
Each aspect of the present invention can provide various digital broadcast service by the direct control to digit broadcasting receiver to terminal use by the content-control access criteria descriptor in use authority control message (ECM).In addition, each aspect of the present invention can be by using the ECM that repeats to send between content to provide mutual digital broadcast service by the real-time control to digit broadcasting receiver.
Beneficial effect
As mentioned above, service server can force user to watch the certain content such as advertisement by LC position.In addition, if as watching the compensation of advertisement to grant gift token, service server can provide gift token to user notification by controlling receiver.Therefore, service supplier can realize ad margins by the control of receiver.
Accompanying drawing explanation
By below in conjunction with accompanying drawing detailed description of the present invention, other side of the present invention, advantage and significant feature will become more obvious for those skilled in the art, wherein:
Fig. 1 shows the figure of the configuration of digital broadcast service system according to an embodiment of the invention.
Fig. 2 shows the figure of transport stream according to an embodiment of the invention.
Fig. 3 shows the figure that (LC) controlled in locking according to an embodiment of the invention.
Fig. 4 shows the figure that gift token according to an embodiment of the invention provides (CP).
Fig. 5 shows the flow chart of contents management method according to an embodiment of the invention.
Embodiment
Referring now to accompanying drawing, unrestriced embodiment of the present invention is described more completely.The present invention may be implemented as many different forms, and is not appreciated that and only only limits to the embodiment that sets forth here.On the contrary, provide these disclosed embodiment so that the disclosure is thoroughly and completely, and scope of the present invention is conveyed to those skilled in the art completely.Can be without departing from the scope of the invention, change with many embodiment in adopt principle of the present invention and feature.
In addition, may not can describe or illustrate known or widely used technology, element, structure and process in detail to avoid fuzzy essence of the present invention.Although accompanying drawing represents one exemplary embodiment of the present invention, accompanying drawing not necessarily in proportion and some feature can be exaggerated or ignore to illustrate preferably and illustrate the present invention.
When starting, description is provided to the system of digital broadcast service.Fig. 1 shows the figure of the configuration of digital broadcast service system according to an embodiment of the invention.
With reference to figure 1, digital broadcast service system comprises and sends the service provider server 100 (service server) of digital broadcast content and from the digit broadcasting receiver 200 (receiver) of service server 100 receiving digital broadcast contents.
Service server 100 broadcast service is provided and carry out such as content obtain, correlation function content sends, accounts etc.Such function of service server 100 can be carried out separately by different entities.
Service server 100Cong content provider obtains content and sends such content to terminal use.In the situation of certain content (that is, paying content), the encryption (for example, scrambling) that service server 100 is carried out content is to prevent uncommitted access.If user buys some and pays content, service server 100 sends the control word (CW) of the deciphering (for example, descrambling) that is used for content to user's receiver 200 by authorization control message (ECM).
In addition, service server 100 sends plurality of kinds of contents by transport stream (TS), content correlated information (for example, ECM, PSI/SI (PSI/SI), electronic service guidebooks (ESG) etc.) and user related information (for example, entitlement management message (EMM) etc.).Particularly, when linking with ECM, send control word.During when 100 pairs of program components of service server (that is, video, audio frequency, data etc.) scrambling and when 200 pairs of program descramblings of receiver, can use control word.Here, before sending, use control word scrambling certain content (for example, paying broadcast).
In addition, service server 100 can provide the gift token that can be used for buying specific payment content.That is to say, service server 100 can provide the gift token of authorized user free access certain content.
Particularly, service server 100 sends the information about content-control access criteria together with content.Content-control access criteria can refer to for controlling the standard of receiver 200.In content-control access criteria, there are three functions.First, content-control access criteria can lock or the control function of release receiver 200.The second, content-control access criteria can be to receiver 200 notice gift token supplies.The 3rd, content-control access criteria can so that receiver 200 can to user notification gift token, supply selectively.
Service server 100 with by TS, send content-control access criteria together with content.Here, content-control access criteria is inserted in ECM as descriptor.
Receiver 200 provides digital broadcasting to receive simultaneously and move digital broadcasting to terminal use.
When receiving above-mentioned transport stream, the packet identifier (PID) that receiver 200 is distributed to the conditional access table (CAT) in transport stream by use detects the EMM in the transport stream of reception.In addition the EMM that, receiver 200 is distributed to the PID of Program Map Table (PMT) in transport stream and the user of receiver 200 by use retrieves ECM from the transport stream receiving.Then receiver 200 retrieval of content access control criterion carry out the function of appointment according to content-control access criteria from ECM.
In the situation that paying content, receiver 200 by the conditional access characteristic in relatively more relevant with wanting accessed content ECM (for example, parental guidance grade, blockade, etc.) with (be for example stored in smart card, subscriber identity module (SIM) or universal subscriber identity module (USIM)) in about access qualification information, check user's access qualification.If user's access qualification goes through, receiver 200 is by using the control word descrambling stream (that is, video, audio frequency, data etc.) relevant with content.Decode and export the stream after descrambling.
The gift token that can provide by service server 100 as mentioned above, is bought and is paid content.For example, when the user of digital broadcasting moves certain content (, advertisement), can provide such gift token.
Because service server 100 is optional to the wire/wireless interface the understanding of the present invention that perhaps receiver 200 access services servers 100 pass through in receiver 200 sends, therefore will omit relevant description.
To describe transport stream in detail hereinafter.Fig. 2 shows the figure of transport stream according to an embodiment of the invention.
Broadcast service is based on fluidisation service according to an embodiment of the invention.For fluidisation service, service server 100 adopts transport stream or transmission stream packets.
Here by supposition transport stream, be Motion Picture Experts Group (MPEG) transmission stream packets, it comprises several data according to specific protocol, such as multi-protocol encapsulation (MPE), Internet protocol (IP), User Datagram Protoco (UDP) (UDP), real-time protocol (RTP) (RTP) and file transfers one-way transmission/access control list (FLUTE/ALC).Such data can comprise EMM, ECM and comprise conditional access table (CAT) and the PSI/SI of Program Map Table (PMT) table.
As mentioned above, when receiving transport stream, the PID that receiver 200 is distributed to CAT by use detects EMM, then by use, distributes to the PID of PMT and user's EMM retrieval ECM.Foregoing access control criterion descriptor is included in ECM.
Fig. 2 shows by it and sends by reference number 1 to 7 content of indication and the transport stream of ECM.
Content-control access criteria descriptor is inserted in each independent ECM and sends by transport stream.ECM comprises descrambling information, content-control access criteria descriptor and control word (for example, TEK).Traffic encryption key (TEK) represents " authority " for the flow data of decrypted transport stream.
As shown in the figure, service server 100 repeats to send ECM in transport stream, so receiver 200 can be at reception period fast access ECM.
Hereinafter by detailed description access control criterion descriptor.Provide table 1 and 2 below to show content-control access criteria descriptor according to an embodiment of the invention.
Table 1
Figure BDA0000072039860000061
Table 2
Position # ?7 ?6 ?5 ?4 ?3 ?2 ?1 ?0
Assignment ?RSV ?RSV ?RSV ?RSV ?RSV ?RSV ?CP ?LC
Table 1 shows the example of content-control access criteria descriptor, and it has the length of eight.Content-control access criteria descriptor is for identifying for control the content-control information of the operation of receiver according to the execution of content.
Table 2 shows distributes to each example of the content-control access criteria descriptor of position separately.Content-control access criteria descriptor comprises locking control (LC) information and gift token supply (CP) information.As shown in table 2, LC information and CP information are distributed to respectively item 0 and 1.
To describe LC information and CP information in detail.
Fig. 3 illustrates the figure of LC according to an embodiment of the invention.
Fig. 3 shows the transport stream that sends ECM by it.As shown in the figure, between content, repeat at certain intervals to send ECM.Refer again to table 1 and 2, the LC position that service server 100 can content-control access criteria descriptor is set to " 0 " or " 1 ".Particularly, LC position " 0 " meaning is to control the release of function, and LC position " 1 " meaning is to control the locking of function.For example, if service server 100 LC positions are set to " 1 ", receiver 200 can not be controlled specific content, therefore should unconditionally export them.
While receiving ECM in transport stream, in the content-control access criteria descriptor of receiver 200 from ECM, retrieve LC position.Then, receiver 200 is according to the LC position locking of retrieval or the control function of release content.The in the situation that of locking, the user of receiver 200 can not use the control function such as broadcasting, time-out, F.F., rewind down etc.
For example, if " 1 " that LC position is set to be indicated by reference number 301, user can not be under controlling the blocked situation of function by use the control function the F.F. (FF) in receiver 200 skip subsequent content 303.
Alternatively, if user is by using the control function such as F.F. to skip foregoing 303, can force receiver 200 to turn back to the starting point of the content being skipped.
If " 0 " that LC position is set to be indicated by reference number 305, user can be in the situation that controlling function and being unlocked by freely using the control function broadcasting in receiver 200, time-out, F.F., rewind down etc. to control subsequent content 307.
Therefore, by LC position, control receiver 200, service server 100 can force user to watch the certain content such as advertisement.That is to say, when service server 100 LC positions are set to " 1 " and send particular advertisement, receiver 200 can not be skipped relevant part, thereby forces user's view content.
Fig. 4 illustrates the figure of CP according to an embodiment of the invention.
Fig. 4 shows the transport stream that sends ECM by it.As shown in the figure, between content, repeat at certain intervals to send ECM.Refer again to table 1 and 2, the CP position that service server 100 can content-control access criteria descriptor is set to " 0 " or " 1 ".Particularly, CP position " 0 " meaning is not granting of gift token, and CP position " 1 " meaning is granting of gift token.That is to say, in the situation that be provided for the gift token of certain content, service server 100 CP positions are set to " 1 ".In the situation that not providing any gift token, service server 100 CP positions are set to " 0 ".
When receiving ECM in transport stream, in the content-control access criteria descriptor of receiver 200 from ECM, retrieve CP position.According to the CP position of retrieval, receiver 200 can determine whether to grant gift token for certain content.Here, for certain content, grant gift token and can be called as metering (metering) service.
For example, if " 1 " that CP position is set to be indicated by reference number 401, receiver 200 identifies, and grants gift token when operation subsequent content 403.
If " 0 " that CP position is set to be indicated by reference number 405, receiver 200 identifies, and does not exist for the gift token that subsequent content 407 is granted.
Now, receiver 200 can show user knows gift token supply whether notice.In addition, the combination that such notice can be based on LC position and CP position.
Provide table 3 below so that the operation of receiver 200 in each combination of LC and CP position to be according to an embodiment of the invention shown.
Table 3
Figure BDA0000072039860000081
Reference table 3, when the LC position retrieving from ECM is " 1 ", it controls function receiver 200 lockings.On the other hand, when LC position is " 0 ", receiver 200 does not lock or its control function of release.
In addition, when the CP position retrieving from ECM is " 1 ", receiver 200 identifies grants gift token.On the other hand, when CP position is " 0 ", receiver 200 identifies does not grant gift token.
Particularly, as shown in table 3, at LC and CP position, be that in two kinds of situations of complete " 0 " or complete " 1 ", whether receiver 200 can grant gift token to user notification alternatively.
In addition, in the situation that LC and CP position are respectively " 1 " or " 0 ", receiver 200 can not know respectively whether grant gift token to user.
Meanwhile, in the situation that LC and CP position are respectively " 0 " or " 1 ", whether receiver 200 can always grant gift token to user notification.
But the combination of the LC shown in table 3 and CP position is only exemplary and should be considered to limit the present invention.Can expect any other combination.
Then, will the contents management method that use above-mentioned LC and CP position be described.
Fig. 5 shows the flow chart of contents management method according to an embodiment of the invention.
With reference to figure 5, service server 100 can send ECM and the content with content-control access criteria descriptor by transport stream.Here suppose that content is advertisement.
When receiving transport stream, in step 501, receiver 200 detects and retrieves ECM from transport stream.
Then in step 503, receiver 200 determines whether the LC position of the content-control access criteria descriptor in ECM is " 1 ".
If LC position is " 1 ",, in step 505, function is controlled in receiver 200 lockings.If it is locked to control function, in this step 505, the lock-out state of receiver 200 retentive control functions.
If LC position is " 0 ",, in step 507, receiver 200 is separated lock control function.If control function, be unlocked, in 507, the released state of receiver 200 retentive control functions.
Then,, in step 509, receiver 200 determines whether the CP position of the content-control access criteria descriptor in ECM is " 1 ".
If CP position is " 1 ",, in step 511, receiver 200 initialization are also carried out metering service.As mentioned above, the metering service meaning is, during content after operation has the ECM of CP position " 1 ", grants gift token.Preferably, such gift token can be stored in receiver 200.
Then, in step 513, whether receiver 200 can grant gift token to user notification.This notifying process 513 is optional and can depends on the combination of LC position and CP position, as mentioned above.
On the other hand, if CP position is " 0 ", in step 515, receiver 200 is not carried out metering service.If metering service is performed,, in step 515, receiver 200 stops metering service.
As previously mentioned, in an embodiment of the present invention, service server can force user to watch the certain content such as advertisement by LC position.In addition, if as watching the compensation of advertisement to grant gift token, service server can provide gift token to user notification by controlling receiver.Therefore, service supplier can realize ad margins by the control of receiver.
Particularly, can be by using the ECM sending with high recurrence rate to allow to control receiver according to contents controlling method of the present invention.Therefore can provide the service more more kinds of than traditional control method by content.
For example, some content in transport stream is divided into three parts, and, in the situation of the latter half of the first half of program, advertisement and program, service can be so that user only has the latter half that can watch program when he or she watches advertisement.In this case, gift token can be only for buying the latter half of program.
In addition, can authorize gift token to buy plurality of kinds of contents.In this case, if user obtains as the gift token of watching the compensation of certain content, this gift token can be for buying another specific content that pays.Be similar to such situation, according to digital broadcast service method of the present invention, can provide in many ways interactive services.
Although the present invention is specifically illustrated and is described with reference to one exemplary embodiment of the present invention, but those skilled in the art are to be understood that, in the situation that not departing from by the defined the spirit and scope of the present invention of appended claims, can make the various modifications in form and details to the present invention.

Claims (10)

1. a method for the digital broadcast service of service providing server, the method comprising the steps of:
Content-control access criteria descriptor is inserted in transport stream, and this content-control access criteria descriptor is for sign content control information, and this content-control information is for controlling at least one operation of the receiver relevant with the execution of content; And
By this transport stream, to this receiver, send this content and content-control access criteria descriptor,
Wherein content-control access criteria descriptor comprises locking control information, and it is to this content locking or release that the playback control function of this receiver is indicated in this locking control information.
2. the method for claim 1, wherein this content-control access criteria descriptor also comprises gift token information provision, wherein whether this gift token information provision indication grants gift token according to the execution of this content.
3. a method for the digital broadcast service of digit broadcasting receiver, the method comprising the steps of:
Receive the transport stream of content and content-control access criteria descriptor, this content-control access criteria descriptor is for sign content control information, and this content-control information is for controlling at least one operation of the receiver relevant with the execution of content; And
According to this content-control access criteria descriptor, process this content,
Wherein content-control access criteria descriptor comprises locking control information, and it is to this content locking or release that the playback control function of this receiver is indicated in this locking control information.
4. method as claimed in claim 3, the step of wherein processing this content comprises:
Identify this locking control information in this content-control access criteria descriptor; And
Based on this locking control information, carry out this content.
5. method as claimed in claim 3, the step of wherein processing this content comprises:
Identify the gift token information provision in this content-control access criteria descriptor, wherein whether this gift token information provision indication grants gift token according to the execution of this content;
Carry out this content; And
Based on this gift token information provision, grant gift token.
6. a device for the digital broadcast service of service providing server, this device comprises:
First module, be configured to content-control access criteria descriptor to be inserted in transport stream, this content-control access criteria descriptor is for sign content control information, and this content-control information is for controlling at least one operation of the receiver relevant with the execution of content; With
Second unit, is configured to this receiver, send this content and content-control access criteria descriptor by this transport stream,
Wherein content-control access criteria descriptor comprises locking control information, and it is to this content locking or release that the playback control function of this receiver is indicated in this locking control information.
7. device as claimed in claim 6, wherein this content-control access criteria descriptor also comprises gift token information provision, wherein whether this gift token information provision indication grants gift token according to the execution of this content.
8. a device for the digital broadcast service of digit broadcasting receiver, this device comprises:
First module, be configured to receive the transport stream of content and content-control access criteria descriptor, this content-control access criteria descriptor is for sign content control information, and this content-control information is for controlling the operation of the receiver relevant with the execution of content; With
Second unit, is configured to process this content according to this content-control access criteria descriptor,
Wherein content-control access criteria descriptor comprises locking control information, and it is to this content locking or release that the playback control function of this receiver is indicated in this locking control information.
9. device as claimed in claim 8, wherein this second unit is also configured to identify the locking control information in this content-control access criteria descriptor; And carry out this content based on this locking control information.
10. device as claimed in claim 8, wherein this second unit is also configured to identify the gift token information provision in this content-control access criteria descriptor, and wherein whether this gift token information provision indication grants gift token according to the execution of this content; Carry out this content; And grant this gift token based on this gift token information provision.
CN200980153049.8A 2008-12-30 2009-12-30 Method and apparatus for digital broadcasting service Expired - Fee Related CN102273217B (en)

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PCT/KR2009/007925 WO2010077076A2 (en) 2008-12-30 2009-12-30 Method and apparatus for digital broadcasting service

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KR20100078352A (en) 2010-07-08
US8707346B2 (en) 2014-04-22
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WO2010077076A2 (en) 2010-07-08
CN102273217A (en) 2011-12-07

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